here now, more of my interview with the man tasked to run the decision-making process, president obama's national security adviser tom donilon. >> did people worry it would be desert two? >> this is why it was a tough decision. what were the risks? there were obviously risk to the forces carrying out the operation. there was a risk of failure and the impact on the united states and its face to the world. there was risk to the pakistani relationship. we were undertaking university lateral action to go after osama bin laden in pakistan. those risks had to be considered by the president. i will tell you this in line with your question. there was a lot of history present in the room. secretary gates. there was a national security aide during desert one. i was an aide to carter. vice president biden was in the senate at the time of the desert one operation. it was clearly on people's minds. also in the room was one of the aspects that came out of desert one and that was the formation of a unified special operations forces command. the troops, the forces that would carry out the operation, tha